Method of self-veisttilatiolt for kaileoad-cabs



v.P.`jooRB`ETT, or` ooRBET'rsvILLE, NEW YORK,

* "nnfrnon or" SELF-VENTILATIQN Fort RAILROAD-CARS.

Specification of Letters Patent No. 12,541, dated March 20, 1855.

To au @am a a@ @am y Be a gimownthanv; P. COB'ETT," Qf Corbettsville,in theicounty of Broome vand ""Stateof New"` .York, have :invented anew and useful Improvementffin Car-Ventila-i tors; and I` do hereby declare that the following is a,` full,` clear, and exact descrip- Y "tion of the same, reference being had to the` i accompanyinglidrawings, `forming part of a this speciication, in whichventilated after `my plan. j

` Figure 1,is aside "elevation ofta car p FigpQ, afhorizontal section ofthe same.`

l n Similar letters of reference 1n eachvoii` the f two figures indicate `Corresponding parts.

l This` invention relatespto a method of iventlating rail road carsland steam boats and preventing dust enteringthe former.

The nature of` saidinvention consists in providing a verticalyentilating fan directly kover the top offuealchl window of the car,

`said fans beingFarranged in openings cut` in the` sidesof the caribetween the ceiling windows and` caused` to revolve `rapidly by theresistance of thefffair when the car or"` boat is; inlrapid motion,i`land as they revolve to `exhaustthe warm" and impure air from "to secure `by Letters Patent istheinsidefof thecarandthus make room `for the lentrance of pure"air from the outside. i y

1 `To enable` others skilled `inthe art to make i i' and usemy invention, will proceedto de-` scribe its` construction and` operation. i

` A, representsthe car; B, B, B, B, the

Lwindows; C, C, "C, "C,-the ventilating openings, formed inthe space between the windows B, B, B, B `and, ceiling of the car;

D, D, D, D, the fans or ventilators made of I@wood or metal and arran ed in a vertical o, o, og. The

position inthe lopenings a blades coinposingthe "fans may form vpart ofthe vertical axles a, a, a, a, and revolve with them; the axles turning in sockets let into the frame at thetops and bottoms of 'the openings C, C,l C, C; or `theaxles may be stationary and the fans revolve around them.

`When` steam boatsare to be :ventilated after my plan the fans are alsoarranged in the space between the Windows and ceiling of theboat ina very similarmanner as when applied to cars.

This invention 1t must be obvious presents several advantages over all other ventilators in use-fit being very simple and com- By examining the drawing it will be seen that as the car moves in the direction of the y pact-and in no way liable to become deranged, and is so constructed and arranged "that no other powerbeside the resistance of i the atmosphere is required to driveit.`

arrow l, the fans will be brought in contact with the atmosphere and consequently caused torevolvel rapidly, and `in `revolving to exhaust the impure air'frm the inside ofthe car, as shownby arrowsjf, and thus make room for the entrance of fresh air.

What I claim as my invention and desire inside of the car.

a V.P. CORBETT. `Vlitnesses:

S. H. WALES, J. W. CooMB. 

